Discussion on common problems of calibration of gas chromatography-mass spectrometries
Based on JJF 1164-2018"Calibration specification for gas chromatography-mass spectrome-tries"and combined with the author's years of experience in the calibration of gas chromatography-mass spectrometries.The article describes the problems often encountered in the calibration process,such as the mass spectral peaks above 600 u cannot be observed in the tuning report,the distinction between dif-ferent concepts of signal-to-noise ratio,the inability to calculate the signal-to-noise ratio,the mass accu-racy exceeding the reference value of metrological characteristics of the calibration specification and selec-tion of"Match","R.Match"and"Prob.％"in spectral library searches.The authors propose solu-tions to these problems,which can provide appropriate reference for calibrators in their daily work.
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